With regard to the problems of higher configuration,lower operation speed and poor interactive experience of the existing BIM platforms,a lightweight BIM platform for the technical management of substation is designed.The platform realizes the cross platform web reconstruction,display and operation of BIM models,supporting basic operations such as online import,browsing and attribute queries.And at the same time,it also enables the functions such as 3D roaming and model annotation.Practical application has shown that the platform has fast loading speed,convenient in application,and improves the collaborative efficiency of various engineering specialties in the construction process of substations,providing a new method for BIM application.